Delhi police teams picked up a senior software engineer identified as Sai Krishna from Vidyagiri in Karnataka’s Bagalkot city and a 50-year-old jobless man named Atul Kulshreshtha in Orai of UP’s Jalaun district on Wednesday as part of their probe into the December 13 security breach in Parliament. Sai Krishna, a resident of Bengaluru and the son of a retired police officer, is employed with a multinational company. Sources said he and one of the arrested accused in the security breach, Manoranjan D, were roommates during their days as engineering students in Bengaluru.